“PRODUCTION AND CHARACTERIZATION OF ALUMINA NANOPARTICLES FROM GIRO CLAY VIA ACID LEACHING WITH SOL GEL METHOD”. FUTA JOURNAL OF ENGINEERING AND ENGINEERING TECHNOLOGY, vol. 15, no. 1, Apr. 2021, pp. 1-10, https://doi.org/10.51459/futajeet.2021.15.1.261.